A shipboard condition created when a spaceship is orbiting a planet. The spaceship has sufficient forward velocity to balance the ships desire to fall toward the planet. This creates a "Freefall" condition where objects on the ship seem to have no weight, and float around the ship at will. Microgravity is what most people call Weightlessness and Zero Gravity. Due to the lack of gravity, an astronaut usually returns to Earth about 2.54 centimeters (1 inch) taller than when he left.

The writer's dictionary of science fiction, fantasy, horror and mythology. 2014.

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  • microgravity — [mī΄krō grav′i tē] n. a nearly weightless condition, as that inside an orbiting spacecraft …   English World dictionary

  • microgravity — /muy kroh grav i tee/, n. a condition, esp. in space orbit, where the force of gravity is so weak that weightlessness results. [1980 85; MICRO + GRAVITY] * * * ▪ physics       a measure of the degree to which an object in space is subjected to… …   Universalium

  • microgravity — noun Date: 1974 a condition in space in which only minuscule forces are experienced ; virtual absence of gravity; broadly a condition of weightlessness …   New Collegiate Dictionary

  • microgravity — noun A state of very low acceleration between two free floating objects, as found in sustained freefall, in orbit, or in interstellar space. Syn: µG, weightlessness See Also: hypergravity, hypogravity, macrogravity, zero gravity …   Wiktionary

  • microgravity — mi·cro·grav·i·ty (miґkro grav″ĭ te) the minute amount of gravitational force existing in outer space; it results in a weightless condition and enhances the likelihood of certain diseases …   Medical dictionary

  • microgravity — maɪkrəʊ grævəɪ n. near absence of gravity, condition in which the force of gravity is so weak that weightlessness occurs …   English contemporary dictionary

  • microgravity — noun very weak gravity, as in an orbiting spacecraft …   English new terms dictionary

  • microgravity — mi·cro·gravity …   English syllables

  • microgravity — mi•cro•grav•i•ty [[t]ˈmaɪ kroʊˌgræv ɪ ti[/t]] n. ars a condition, esp. in orbit, where the force of gravity is so weak that weightlessness results • Etymology: 1908–85 …   From formal English to slang

  • microgravity — ¦mīkrōˌ noun Etymology: micr + gravity : a condition in space in which only minuscule gravitational forces are experienced : virtual absence of gravity ; broadly : weightlessness …   Useful english dictionary

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